rm -r DesignLib
rm cds.lib 
rm lib.defs
rm -r reflib
lef2oa -lib reflib -lef NangateOpenCellLibrary.lef
def2oa -lib DesignLib -cell test2 -view layout -def ori_test2.def -refLibs reflib -techLib reflib

rm -r DesignLib_std2
rm cds.lib 
rm lib.defs
rm -r reflib
lef2oa -lib reflib -lef NangateOpenCellLibrary.lef
def2oa -lib DesignLib_std2 -cell test2 -view layout -def ori_test2.def -refLibs reflib -techLib reflib